HP Forum Archive 14

[ Return to Index | Top of Index ]

HP-41CV clearing malfunction Message #1 Posted by Tom Storino on 22 Dec 2004, 3:46 p.m. I have two HP-41CV calculators with surveying pacs that I have used for many years (trouble free). Recently, one has been not clearing properly. When you attempt a routine: press the gold shift key, then press the clear x/a key, instead of the display showing 0.0000, it shows "DSP BRG?" This calculator otherwise appears to perform all other related (surveying) functions properly. I wondered if anyone has ever experienced this problem and if so, if they might have any ideas regarding a repair solution? If so I would appreciate if that someone would consider sharing same with me. Thank-you. Tom Storino

Re: HP-41CV clearing malfunction Message #2 Posted by Vieira, Luiz C. (Brazil) on 22 Dec 2004, 4:36 p.m., in response to message #1 by Tom Storino Hi, Tom; please, allow me a silly question. Have you tried either of both: 1)removing the SURVEY module, or 2)checking if USER mode is active? Maybe, just maybe, the 'Display bearing' routine is assigned to the [CLx] key, and either of both actions should solve the problem. The worst case would be removing the module (calculator OFF, of course), trying [CLx] while USER mode is active and having a NONEXISTENT message, meaning an internal function/program was actually assigned to it (XROM something). BTW, if USER mode is active, simply press the [USER] key to deactivate it (it's a toggle key, so you can turn USER mode back on again anytime you need). Hope this helps. Cheers. Luiz (Brazil) Edited: 22 Dec 2004, 4:41 p.m.

Re: HP-41CV clearing malfunction Message #3 Posted by Tom Storino on 27 Dec 2004, 10:58 a.m., in response to message #2 by Vieira, Luiz C. (Brazil) Dear Luiz and Emmanuel: Thank-you both for the quick response. You were both right on track with identifying the problem! Once I determined that a function had somehow been incorrectly assigned to CLx key, it was a simple fix. Your help is greatly appreciated. THANK-YOU. MERRY CHRISTMAS! Tom Storino

Re: HP-41CV clearing malfunction Message #4 Posted by Emmanuel aka xeq41 on 22 Dec 2004, 4:41 p.m., in response to message #1 by Tom Storino Dear Tom, He is right. I don't know this module a lot. But did you made a key asignment? Please remove your module(s) and press SHIFT <-. If you see something like XROM ... , you have a key assignment on that key. You can easily remove it (display shows " "): SHIFT ASN "ASN _" ALPHA ALPHA "ASN _" SHIFT "ASN -_" <- "ASN -44" That's all ... 12345 Edited: 22 Dec 2004, 4:43 p.m.

[ Return to Index | Top of Index ]

Go back to the main exhibit hall